Spot deposition for liquid ink printing

Details Spot deposition for liquid ink printing Spot deposition for liquid ink printing

1987-07-21

1988-05-31

Hartary, Joseph W.

Recorders

Performance of multiple functions of steam and gas engines

Pressure responsive element

346140R, 400121, 400126, G01D 1516

Patent

active

047484535

ABSTRACT:
A method of depositing spots of liquid ink upon selected pixel centers on a substrate having poor ink absorptive properties so as to prevent the flow of liquid ink from one spot to an overlapping adjacent one. The line of information is printed in at least two passes so as to deposit spots of liquid ink on selected pixel centers in a checkerboard pattern wherein only diagonally adjacent pixel areas are deposited in the same pass. On the second pass the complementary checkerboard pattern is deposited. Ink is not deposited on horizontally or vertically adjacent pixel areas during the single pass since the spots on these adjacent areas have overlapping portions.

REFERENCES:
patent: 4367482 (1983-01-01), Heinzl
patent: 4593295 (1986-06-01), Matsufuji
patent: 4617580 (1986-10-01), Miyakawa

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